The J8

  It is an incredibly old aircraft. However, China should probably continue to operate this fleet until every single one of them falls out of the sky. Instead of trying to deactivate old air crafts and missiles like the J8 and the DF5. China should continue to build more air crafts and missiles to further enlarge the inventory. This way, the size of the military does not stagnate while newer inventory continues to replace the old. While instead, the size of the military continues to expand and gets larger as new inventory is placed on top of the previous bulk.

 The J8 is no frontline, and the DF5 is a liquid fuel rocket. However the J8 is a twin engine aircraft capable of being equipped with modern weapons systems like BVR, guided munitions, and electronic warfare systems. It is able to expose and attack vulnerable enemy gaps while the enemy's front line is far too tied down as a result of facing your front line fighters and bombers. And the DF5 really needs no explanation. Its a fearsome missile regardless what century it is.